Rotating shafts and electrical equipment can
be hazardous. Therefore, it is strongly
recommended that all electrical work conform
to the National Electrical Code (NEC) and all
local regulations. Installation, start-up and
maintenance should be performed only by
qualified personnel.
VLT® 5000 / VLT® 6000
does not disconnect the equipment from the AC line and
is not to be used as a safety switch.
3. Correct protective grounding of the equipment must be
established. The user must be protected against supply
voltage and the motor must be protected against
overload in accordance with applicable national and local
regulations.
4. Ground currents are higher than 3 mA.
Factory recommended procedures, included in this manual,
should be followed. Always disconnect electrical power before
working on the unit.
Although shaft couplings or belt drives are generally not
furnished by the manufacturer, rotating shafts, couplings and
belts must be protected with securely mounted metal guards
that are of sufficient thickness to provide protection against
flying particles such as keys, bolts and coupling parts. Even
when the motor is stopped, it should be considered “alive”
as long as its controller is energized. Automatic circuits may
start the motor at any time. Keep hands away from the output
shaft until the motor has completely stopped and power is
disconnected from the controller.
Motor control equipment and electronic controls are
connected to hazardous line voltages. When servicing drives
and electronic controls, there will be exposed components
at or above line potential. Extreme care should be taken to
protect against shock. Stand on an insulating pad and make
it a habit to use only one hand when checking components.
Always work with another person in case of an emergency.
Disconnect power whenever possible to check controls or
to perform maintenance. Be sure equipment is properly
grounded. Wear safety glasses whenever working on electric
control or rotating equipment.
Safety Guidelines
1. The drive must be disconnected from the AC line before
any service work is done.
2. The “Stop/Off” key on the local control panel of the drive
W arnings Against Unintended
Start
1. While the drive is connected to the AC line, the motor
can be brought to a stop by means of external switch
closures, serial bus commands or references. If personal
safety considerations make it necessary to ensure that
no unintended start occurs, these stops are not sufficient.
2. During programming of parameters, the motor may start.
Be certain that no one is in the area of the motor or
driven equipment when changing parameters.
3. A motor that has been stopped may start unexpectedly
if faults occur in the electronics of the drive, or if an
overload, a fault in the supply AC line or a fault in the
motor connection or other fault clears.
4. If the “Local/Hand” key is activated, the motor can only
be brought to a stop by means of the “Stop/Off” key or
an external safety interlock.
NOTE:
It is responsibility of user or person installing
drive to provide proper gr ounding and branch
circuit protection for incoming power and
motor overload according to National Electrical
Code (NEC) and local codes.
The Electronic Thermal Relay (ETR) is UL listed. VLTs provide
Class 20 motor overload protection in accordance with the
NEC in single motor applications, when VLT 6000 parameter
117 (VLT 5000 parameter 128) is set for ETR Trip 1 and
parameter 105 is set for rated motor (nameplate) current.
DANGER
!
Touching electrical parts may be fatal – even after equipment has been
disconnected from AC line. To be sure that capacitors have fully discharged, wait 14 minutes after power has been removed before touching
any internal component.
2
MG.60.E4.02 - VLT is a registered Danfoss trademark
Decommissioning VL T Drive from LonW orks Network ......................... 39
VLT® 5000 / VLT® 6000
4
MG.60.E4.02 - VLT is a registered Danfoss trademark
VLT® 5000 / VLT® 6000
Introduction
About This
Manual
This manual provides comprehensive
instructions on the installation and set up of
the LonWorks Option Card for the VLT 5000
and the VLT 6000 Adjustable Frequency Drive
to communicate over a LonWorks network.
For specific information on installation and
operation of the adjustable frequency drive,
refer to the VLT 5000 Installation, Operation
and Instruction Manual or VLT 6000
Installation, Operation and Instruction Manual.
This manual is intended to be used for both
instruction and reference. It only briefly
touches on the basics of the LonWorks
protocol whenever it is necessary for gaining
an understanding of the LonWorks profile for
drives and the LonWorks Option Card for the
Adjustable frequency drive.
This manual is also intended to serve as a
guideline when you specify and optimize your
Portions of this manual are printed with the
permission of the Echelon Corporation and the
National Electrical Contractors Association of
the USA (NECA).
Echelon®, LonTalk®, Neuron® and LonWorks
are registered trademarks of the Echelon
Corporation. VLT® is a registered trademark
of Danfoss Inc.
communication system. Even if you are an
experienced LonWorks programmer, we
suggest that you read this manual in its entirety
before you start programming, since important
information can be found in all sections.
®
Assumptions
What Y ou
Should
Already Know
References
This manual assumes that you have a
controller node that supports the interfaces
in this document and that all the requirements
stipulated in the controller node, as well as
The Danfoss LonWorks Option Card is
designed to communicate with any controller
node that supports the interfaces defined in
LonMaker™ for Windows® User's Guide.
VLT® 5000 Installation, Operation and
Instruction Manual
(Referred to as the VLT Instruction Manual in
this document.)
VLT ®6000 Installation, Operation and
Instruction Manual
(Referred to as the VLT Instruction Manual in
this document.)
the Adjustable Frequency Drive, are strictly
observed along with all limitations therein.
this document. It is assumed that you have
full knowledge of the capabilities and
limitations of the controller node.
MG.60.E4.02 - VLT is a registered Danfoss trademark
5
VLT® 5000 / VLT® 6000
LonWorks
Overview
LON
Concept
LonWorks is both an existing standard and
hardware developed by Echelon Corporation.
Echelon's stated goal is to establish a commodity solution to the presently daunting
problems of designing and building control
networks.
The result is LonMark Interoperability which
makes it possible for independent network
devices to operate together over a
LonWorks network. The LonMark program
was developed to address interoperability
issues. As a result, the LonMark
Interoperability Association Task Groups
(LonUsers Groups) were developed. The
task groups determine that each device on
the network has an object definition, create
The LonWorks communications structure is
similar to that of a local area network (LAN)
in that messages are continually exchanged
between a number of processors. A
LonWorks system is a determined local
operating network (LON). LON technology
offers a means for integrating various
distributed systems that perform sensing,
monitoring, control, and other automated
functions. A LON allows these intelligent
devices to communicate with one another
through an assortment of communications
media using a standard protocol.
LON technology supports distributed, peerto-peer communications. That is, individual
standards and models to be used by
particular applications and create a common
platform for presenting data. A standard
network variable type (SNVT) facilitates
interoperability by providing a well defined
interface for communication between
devices made by different manufacturers.
The VLT Adjustable Frequency Drive
supports the node object and controller
standard object definitions of LonMark
Interoperability.
Customers are currently using LonWorks for
process control, building automation, motor
control, elevator operation, life safety
systems, power and HVAC distribution and
similar intelligent building applications.
network devices can communicate directly
with one another without need for a central
control system. A LON is designed to move
sense and control messages which are
typically very short and which contain
commands and status information that
trigger actions. LON performance is viewed
in terms of transactions completed per
second and response time. Control systems
do not need vast amounts of data, but they
do demand that the messages they send
and receive are absolutely correct. The critical
factor in LON technology is the assurance
of correct signal transmission and verification.
Applications
6
An important LonWorks benefit is the
network’s ability to communicate across
different types of transmission media. The
NEURON chip is the heart of the LonWorks
system. The NEURON chip's communication port allows for the use of
transceivers for other media (such as coax
and fiber optic) to meet special needs.
LonWorks control devices are called nodes.
Physically, each node consists of a NEURON
chip and a transceiver. With proper design,
the nodes become building blocks that can
be applied to control a variety of tasks, such
as lighting or ventilating, integrating a variety
of communications media.
The tasks which the nodes perform are
determined by how they have been
connected and configured. Because
hardware design, software design, and
network design may be independent in a
LonWorks-based system, a node’s function
can be programmed to accommodate the
networks in which it will be used.
MG.60.E4.02 - VLT is a registered Danfoss trademark
VLT® 5000 / VLT® 6000
VLT LonWorks
Option Card
The Danfoss VLT LonWorks option card is
comprised of a control card with a NEURON
chip and a memory card. When installed into
the VLT adjustable frequency drive, the unit
enables the drive to communicate with other
devices on the LON. The VLT drive is designed
to provide precision control of standard
induction electrical motors. The drive receives
three reference signals along with start/stop
and reset commands from the network. The
drive also receives a 16-bit control word that
provides full operational control of the drive.
(See Network Drive Control Input for additional
details.)
In response, the drive provides 16 output
network variables containing important drive
and motor data. (See Drive Feedback toNetwork.) Output to the network includes
drive status, current, voltage, motor and
inverter thermal status, and alarms and
warnings.
LonWorks supports many different types of
transmission media. A LonWorks network
physical layer option can be transformer
coupled twisted pair (78 kbps and 1.25
Mbps), free topology, link power, power line,
RF, RS-485, fiber optic, coaxial, or infrared.
The VLT LonWorks option supports four
transmission media with three versions of the
VLT LonWorks option card. The VLT
LonWorks option card versions are:
1. Free topology, which also operates on
a link power network.
2. 78 kbps transformer coupled twisted
pair.
3. 1.25 Mbps transformer coupled twisted
pair.
A router is required to interface to a LonWorks
network when not supported by one of the
three option card versions.
Node
Arrangements
Message
Passing
LonWorks nodes can be addressed either
individually or in groups. A group can contain
up to 64 nodes, and one LonWorks network
can support 255 groups. Furthermore, any
node can be part of 15 different groups. A
subnet, very similar to a group, can contain
127 nodes. A domain is the largest
arrangement of nodes with a single domain
able to handle 255 subnets. Thus a domain
can handle 32,385 separate nodes. A single
node may be connected to no more than two
domains.
The group structure has the advantage of
allowing a number of nodes to be reached at
only one address. This method reduces the
There are a number of trade-offs between
network efficiency, response time, security,
and reliability. Generally, LonWorks defaults to
the greatest degree of safety and verification
for all communications over the LON network.
The LonTalk protocol, built into the chips, is
the operating system that coordinates the
LonWorks system. It offers four basic types
of message service.
record keeping inside each chip to a minimum,
allowing faster operation. However, high
efficiency individual addressing can be done
at all levels of a LonWorks system. The
address table of a node contains entries for
the group type and size and tells the node
how many acknowledgments to expect when
it sends a message. It also tells the NEURON
chip which domain to use and the node group
member number, which identifies an
acknowledgment as coming from the node.
The address also contains a transmit timer, a
repeat timer, a retry counter, a receive timer,
and the group ID.
The most reliable service is acknowledged (or
end-to-end acknowledged service), where a
message is sent to a node or group of nodes
and individual acknowledgments are expected from each receiver. If an
acknowledgment is not received from all destinations, the sender times out and re-tries
the transaction. The number of retries and
time-out duration are both selectable. Ac-
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7
VLT® 5000 / VLT® 6000
Message
Passing
(continued)
Collision
Detection
knowledgments are generated by the network
host processor without intervention of the application. Transaction IDs are used to keep
track of messages and acknowledgments so
that the application does not receive duplicate messages.
An equally reliable service is request/response,
where a message is sent to a node or group
of nodes and individual responses are expected from each receiver. Incoming
messages are processed by the application
on the receiving side before a response is
generated. The same retry and time-out options are available as with acknowledged
service. Responses may include data, so that
this service is particularly suitable for remote
procedure call or client/server applications.
The LonTalk protocol uses a unique collision
avoidance algorithm which allows an
overloaded channel to carry near to its
maximum capacity, rather than reducing its
throughput due to excessive collisions
between messages. When using a
communications medium that supports
collision detection, such as twisted pair, the
LonTalk protocol can optionally cancel
transmission of a packet as soon as a collision
is detected by the transceiver. This option
Next in reliability is unacknowledged repeated.
Messages are sent multiple times to a node
or a group of nodes with no response
expected. This service is typically used when
broadcasting to large groups of nodes when
traffic generated by all the responses would
overload the network.
The final method in reliability is unac-knowledged, where a message is sent once
to a node or group of nodes and no response
is expected. This option is typically used when
the highest performance is required, network
bandwidth is limited, and the application is
not sensitive to the loss of a message.
allows the node to immediately retransmit any
packet that has been damaged by a collision.
Without collision detection, the node would
wait the duration of the retry time to notice
that no acknowledgment was received. At that
time it would retransmit the packet, assuming
acknowledge or request/response service.
For unacknowledged service, an undetected
collision means that the packet is not received
and no retry is attempted.
Network
Management
8
Depending on the level of a given application,
a LonWorks network may or may not require
the use of a network management node. A
network management node performs
management functions, such as:
• Find unconfigured nodes and
download their network addresses.
• Stop, start, and reset node
applications.
• Access node communication statistics.
• Configure routers and bridges.
• Download new applications programs.
• Extract the topology of a running
network.
MG.60.E4.02 - VLT is a registered Danfoss trademark
VLT® 5000 / VLT® 6000
Routers and
Bridges
A router (or bridge) is a special node that
consists of two connected NEURON chips, each
connected to a separate channel (see figure
below). Routers and bridges pass packets
back and forth between these channels. There
are four types of routers. A repeater is the
simplest form of router, simply forwarding all
packets between the two channels. A bridge
simply forwards all packets which match its
domains between the two channels. Using a
bridge or repeater, a subnet can exist across
multiple channels. A learning router monitors
the network traffic and learns the network
topology at the domain/subnet level. The
learning router then uses its knowledge to
selectively route packets between channels.
Like a learning router, a configured router
selectively routes packets between channels
by consulting internal routing tables. Unlike a
learning router, the contents of the internal
routing tables are specified using network
management commands.
Initially, each router sets its internal routing tables
to indicate that all subnets could lie on either side
of the router. Suppose that node 6, in the figure
below, generates a message bound for node 2.
Learning router 1 initially picks up the message.
It examines the source subnet field of the
message and notes in its internal routing tables
that subnet 2 lies below it. The router then
compares the source and destination subnet IDs
and, since they are different, the message is
passed on. Meanwhile, learning router 2 also
passes the message on, making an appropriate
notation in its internal routing tables regarding the
location of subnet 2.
Suppose now that node 2 generates an
acknowledgment. This acknowledgment is
picked up by learning router 1, which now notes
the location of subnet 1. Learning router 1
examines its internal routing tables, and, noting
that subnet 2 lies below, passes the message
on. When the message appears on subnet 2, it
is noted by both node 6 (the destination) and
learning router 2. Learning router 2 does not pass
it on but merely notes that subnet 1, like subnet
2, lies somewhere above. Learning router 2 will
not learn of the existence or location of subnet 3
until a message is originated from there. Subnets
cannot cross routers. While bridges and
repeaters allow subnets to span multiple
channels, the two sides of a router must belong
to separate subnets. Since routers are selective
about the packets they forward to each channel,
the total capacity of a system can be increased
in terms of nodes and connections.
Channel
1 2 3 4
Subnet 1
Channel
9 10 11 12
Subnet 3
MG.60.E4.02 - VLT is a registered Danfoss trademark
Learning
R
Router 1
Learning
Router 2
Learning Routers
Source: Echelon Corp.
R
Channel
5 6 7 8
Subnet 2
9
Wiring
CAUTION
!
CAUTION
!
Installation
WW
iringiring
W
iring
WW
iringiring
The adjustable frequency drive generates a
carrier frequency with a pulse frequency
between 3 kHz and 14 kHz. This results in
radiated frequency noise from the motor
cables. It is very important that the LonWorks
cable be isolated as much as possible from
the drive output cabling to the motor. Use
shielded wire rather than twisted-pair. Do not
run LonWorks cabling and motor cables in
parallel or in close proximity to one another.
Ensure that the drive is properly grounded.
VLT® 5000 / VLT® 6000
Card
Installation
The following section describes the installation
procedures for the LonWorks option card (see
following illustration). For additional information
on installation and operation of the VLT
adjustable frequency drive, refer to the VLTInstruction Manual.
DANGER
!
VLT adjustable frequency drive
contains dangerous voltages
when connected to line power.
After disconnecting from line,
wait at least 14 minutes before
touching any electrical components.
WARNING
!
Only a competent electrician
should carry out electrical
installation. Impr oper installation
of motor or VLT can cause
equipment failure, serious injury
or death. Follow this manual,
National Electrical Code (USA)
and local safety codes.
Electronic components of VLT
adjustable frequency drives are
sensitive to electrostatic discharge (ESD). ESD can reduce
performance or destro y sensitive
electronic components. Follow
proper ESD procedures during
installation or servicing to
prevent damage.
It is responsibility of user or
installer of VLT adjustable
frequency drive to provide pr oper
grounding and motor overload
and branch protection according
to National Electrical Code (USA)
and local codes.
MG.60.E4.02 - VLT is a registered Danfoss trademark
VLT® 5000 / VLT® 6000
Terminator
Switch
Ribbon
Cable
Socket
(to Memory
Board)
LEDs
Terminal
Connector
Service Pin
Switch SW1
Mounting Hole
LEDs
Terminal
Connector
Service Pin
Switch SW3
Ribbon
Cable
Socket
(to Control
Board)
Ribbon
Cable
Socket
(to drive
control
board)
Host
Chip
LonWorks Control Board
Drive
Memory
VLT LonWorks Option Card
(Free T opology Model)
MG.60.E4.02 - VLT is a registered Danfoss trademark
Memory Board
11
Installation Instructions
VLT® 5000 / VLT® 6000
1. Access to
Control
Card
Cassette
2. Disconnect
Control
Card
Cassette
IP20/NEMA 1 and Bookstyle
• Remove Local Control Panel (LCP) by
pulling out from top of display (A) by
hand. LCP connector on panel back
will disconnect.
• Remove protective cover by gently
prying with a screw driver at notch (B)
and lift cover out of guide pin fittings.
IP54/NEMA 12
• Open front panel of drive by loosening
captive screws and swing open.
• Disconnect Local Control Panel (LCP)
cable from drive control card.
• Remove control wiring by unplugging
connector terminals (A).
• Remove grounding clamps (B) by
removing two screws holding each in
place. Save screws for reassembly.
• Loosen two captive screws (C) securing
cassette to chassis.
(A)
(B)
(A)
(B)
12
(C)
MG.60.E4.02 - VLT is a registered Danfoss trademark
VLT® 5000 / VLT® 6000
3. Remove
Cassette
and Ribbon
Cables
• Lift control card cassette from bottom.
• Unplug two ribbon cables (A) and (B)
from control board.
• Unhinge cassette at top to remove.
NOTE
Ribbon cables will need to be
reconnected to same connections from which removed.
(A)
(B)
4. Chassis
Ground
Connections
NOTE
Ground strips are used on 208 V
drives of 22 kW (30 HP) or less
and on 460 V drives of 45 kW
(60 HP) or less. For all other
drives, go to step 6.
• Location of holes to mount grounding
strips can vary with drive configuration.
When applicable, remove mounting
screws and washers located in chassis
using Torx T-20 screw driver and save
for reassembly. Otherwise, grounding
strips attach with screws and washers
provided, as shown in step 5.
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13
VLT® 5000 / VLT® 6000
5. Install
Chassis
Ground
Connections
• Align ground strips over screw holes.
Strip with fewest contact points mounts
on cable side of chassis. Tabs on
grounding strips point toward outside
of chassis.
• Replace screws removed in step 4 and
add additional screws and washers
provided, as necessary. Tighten to
0.9 Nm (8 in-lbs) using Torx T-20 screw
driver.
Ground
Strips
6. Install
Ribbon
Cables
between
Option
Cards
• Attach ribbon cables between
LonWorks control card and memory
card.
• Be sure exposed wire portion of ribbon
cable (A) is facing front of socket (B).
Do not remove blue insulation covering
end of ribbon cable.
• Pull up collar (C) of ribbon cable socket,
insert cable and push collar closed.
• Repeat procedure for all ribbon cables.
IP20/NEMA 1 and IP54/NEMA 12
• Remove terminal connector from
terminal block (D) and connect to
terminal block (E) at this time for ease
of access.
(D)
(E)
14
MG.60.E4.02 - VLT is a registered Danfoss trademark
VLT® 5000 / VLT® 6000
7. Remove
LCP Cradle
8. Ribbon
Cable
Routing
IP20/NEMA 1 and Bookstyle
• Carefully push in tabs at corners of LCP
cradle to release clips. Pull out to
disengage clips and lift cradle free.
• Route ribbon cables from LonWorks
memory card through slot at side of
control board cassette.
9. Insert
LonWorks
Card
MG.60.E4.02 - VLT is a registered Danfoss trademark
• Insert edge of LonWorks cards into slot
in side of cassette and align screw
holes.
15
VLT® 5000 / VLT® 6000
10. Secure
LonW orks
Card
11. Install
Ribbon
Cable on
VLT Control
Board
• Secure LonWorks card with 3
self-tapping screws and washers
provided using Torx T-10 screw driver.
Tighten to 8 in-lbs (0.9 Nm).
• Be sure not to twist or crimp ribbon
cables.
• Insert cables into corresponding
sockets and fasten in accordance with
directions in step 5.
12. Install
LCP Cradle
16
IP20/NEMA 1 and Bookstyle
• Insert cradle clips into holes in cassette.
• Push down on cradle to snap it into
place.
MG.60.E4.02 - VLT is a registered Danfoss trademark
VLT® 5000 / VLT® 6000
13. Install
Spring
T ension
Clip
IP20/NEMA 1 and IP54/NEMA 12
• Spring tension clip (A) is used as a cable
strain relief and ground point for
shielded cable.
• Insert clip through inner wall of chassis
at slot provided.
• Compress spring into clip at outer wall
of chassis.
(A)
14. Install
Ribbon
Cables
• Connect ribbon cables.
• Connect control card cassette to hinge
at top of drive and fit into chassis.
NOTE
Ribbon cables must be reconnected to same connections from
which removed.
MG.60.E4.02 - VLT is a registered Danfoss trademark
17
VLT® 5000 / VLT® 6000
15. Install
Control Card
Cassette
16. Plug in
T erminal
Connector
• Fasten control card cassette by
alternately tightening two captive
screws (A). Tighten to 0.9 Nm (8 in-lbs).
• Route control wires through clamp
fasteners (B) and secure clamps with
two screws.
• Connect control terminals (C) by firmly
pressing them into connector
receptacles.
• Connect signal wire NET A to terminal
79 and NET B to 80 of terminal
connector. (In free topology model,
connections can be reversed.)
(C)
(A)
(B)
61
80
79
IP20/NEMA 1 and IP54/NEMA 12
• Plug network connector into terminal
block at side of control card cassette.
• Insert LonWorks cable between inner
wall of chassis and spring tension clip.
NOTE
Shielded cable is recommended.
Ground shielded cable at spring
tension clip location or ground at
cable clamp by removing cable
insulation at contact point. Do not
use connector terminal 61.
Bookstyle
• Remove knockout from top of drive (A).
• Route control wires through clamp
fasteners (B) on cable plate and secure
clamps with screws. Tighten to 0.9 Nm
(8 in-lbs).
• Secure cable plate to drive with screws
and screw holes provided. Tighten to
0.9 Nm (8 in-lbs).
• Plug network connector (C) into
terminal block at top of control card
cassette.
(A)
Shield 61
NET B 80
NET A 79
(B)
(C)
18
MG.60.E4.02 - VLT is a registered Danfoss trademark
VLT® 5000 / VLT® 6000
Network
Initialization
of LonW orks
Option Card
LonMark
XIF Files
The LonWorks option card contains a NEURON
chip with a unique address. After hardware
installation, initialize the LonWorks option card.
Addressing nodes on the LonWorks network
is performed at installation time by an
installation tool or network management tool.
Addressing requires the retrieval of a node’s
NEURON ID. The NEURON ID is a 48 bit number
that identifies every manufactured NEURON
chip. There are several methods by which the
network software will initialize the drive
automatically. The network can recognize the
drive without action beyond proper
installation. The card is then ready to be
programmed for network operation. The VLT
LonWorks option supports three additional
methods of addressing a node:
1. Service Pin - There are two
momentary-contact service switches that
send the NEURON ID over the network. If the
network software prompts the action, press
A LonMark interface file (.XIF extension)
provides the host processor with device
information. With this, it is possible to design
a LonWorks network without the adjustable
frequency drive being physically present.
The VLTLON.XIF can be downloaded from
the Internet site www.danfoss.com/drives. The
LonWorks option card does not contain an
internal interface file.
either service pin (SW1 or SW3) to transmit
the NEURON ID over the network. The service
pin locations are shown in the illustration in
Terminator and Service Switch Locations in
this manual.
2. Query and Wink - The LonWorks option
card is shipped with a domain of “0” and
subnet of “1.” Upon receiving the wink
command, the on-board green status LED
flashes so that the installer can locate the
node. The chip sends out its Neuron ID over
the network in response to the query
command.
3. NEURON ID Label - The VLT LonWorks
option card has a NEURON ID label that
displays the NEURON ID as a 12 digit
hexadecimal number. The installer can
manually enter the NEURON ID during
installation.
The VLT LonWorks network interface consists
only of SNVTs. The SNVTs support the
LonMark Controller Profile along with VLT
configuration, control and monitoring
capabilities. Any combination of SNVTs can
be used to operate the VLT.
Echelon Corporation has also developed a set
of free plug-ins available through their web site
at www.echelon.com/plugin/default.htm. Also
intended for network design, these plug-ins
provide easy access to screens which simplify
the process of manually setting up the drive,
testing, and monitoring operation.
The drive may also be added to the network
upon initialization.
MG.60.E4.02 - VLT is a registered Danfoss trademark
19
VLT® 5000 / VLT® 6000
78 kbps and
1.25 Mbps
Transformer
Coupled
Twisted Pair
Model
Doubly Terminated
Bus Topology
T erminator
and Service
Switch
Locations
The 78 kbps and 1.25 Mbps Transformer
Coupled Twisted Pair model system is
designed to support doubly terminated bus
topology.
TRANSCEIVER
TERMINATION
The terminator switch location for the 78 kbps
or 1.25 Mbps Transformer Coupled Twisted
Pair model is shown below.
TT
erminator Switcherminator Switch
T
erminator Switch
TT
erminator Switcherminator Switch
TERMINATION
Service Pin SwitchesService Pin Switches
Service Pin Switches
Service Pin SwitchesService Pin Switches
Switch 1:Switch 1:
Switch 1:
Switch 1:Switch 1:
Network TNetwork T
Network T
Network TNetwork T
The VLT LonWorks node is
terminated.
Network TNetwork T
Network T
Network TNetwork T
The VLT LonWorks node is not
terminated. Factory setting.
ermination ONermination ON
ermination ON
ermination ONermination ON
ermination OFFermination OFF
ermination OFF
ermination OFFermination OFF
78 kbps and 1.25 Mbps LonWorks
Control Card
20
MG.60.E4.02 - VLT is a registered Danfoss trademark
VLT® 5000 / VLT® 6000
CAUTION
!
Performance
Specification
Communication on TP/
XF-78 and
TP/XF-1250
Channels
The table below provides a summary of the
performance specifications for the 78 kbps and
Transmission Speed78kbps1.25Mbps
Nodes per Channel6464
Network Bus WiringUL Level IV, 0.65 mm (22 AWG) shielded
Network Stub WiringUL Level IV, 0.5 mm (22 or 24 AWG) shielded
Network Bus Length
MG.60.E4.02 - VLT is a registered Danfoss trademark
1
Typical conditions are 20°C (68°F), +5 VDC
supply voltage, normal wire temperature,
and 64 evenly distributed nodes.
2
Worst case conditions are the combined
effect of worst case conditions of all the
above performance parameters — nodes
per channel, network bus length, stub
length, temperature, etc.
3
The stub length in the table assumes a mutual
capacitance of 56 pF/m (17 pF/ft) for the
twisted pair stub cable. Actual lengths may
be shorter or longer depending on the
actual, measured value.
It is necessary to terminate theIt is necessary to terminate the
It is necessary to terminate the
It is necessary to terminate theIt is necessary to terminate the
ends of a TP/XF-78 or TP/XF-1250ends of a TP/XF-78 or TP/XF-1250
ends of a TP/XF-78 or TP/XF-1250
ends of a TP/XF-78 or TP/XF-1250ends of a TP/XF-78 or TP/XF-1250
twisted pair bus to minimizetwisted pair bus to minimize
twisted pair bus to minimize
twisted pair bus to minimizetwisted pair bus to minimize
rr
eflections. Failureflections. Failur
r
eflections. Failur
rr
eflections. Failureflections. Failur
bus will degrade networkbus will degrade network
bus will degrade network
bus will degrade networkbus will degrade network
performance.performance.
performance.
performance.performance.
e to terminate thee to terminate the
e to terminate the
e to terminate thee to terminate the
21
VLT® 5000 / VLT® 6000
LonW orks
Card
Diagnostic
LEDs
Status LED
The LonWorks board includes two LEDs to
display the communication status of the
board, display the state of the NEURON chip,
and respond to the network management
The Status LED patterThe Status LED patter
The Status LED patter
The Status LED patterThe Status LED patter
ONON
ON
ONON
There is power on the board but
there has not been any
communication to an input network
variable in the last 2 seconds.
Flashing 10 times per secondFlashing 10 times per second
Flashing 10 times per second
Flashing 10 times per secondFlashing 10 times per second
There is regular network
communication to the VLT's input
network variables.
Flashing intermittentlyFlashing intermittently
Flashing intermittently
Flashing intermittentlyFlashing intermittently
There is network communication to
the VLT's input network variables but
input network variables are received
at a period greater than 2 seconds.
ns arns ar
ns ar
ns arns ar
e:e:
e:
e:e:
“wink” command. The onboard LEDs are the
Service LED (LED 1, red) and the Status LED
(LED 2, green).
LEDsLEDs
LEDs
LEDsLEDs
Service LED
Flashing 5 times per secondFlashing 5 times per second
Flashing 5 times per second
Flashing 5 times per secondFlashing 5 times per second
The response to the network
management “Wink” command. The
VLT LonWorks node must be reset to
leave the wink state.
OFFOFF
OFF
OFFOFF
No power on board or hardware fault.
The Service LED displays the state of the
NEURON chip. The following table shows the
Service LED patterns for various states and
defines their meaning.
22
MG.60.E4.02 - VLT is a registered Danfoss trademark
Service LED
Patterns and
Descriptions
LED PatternOperationDescription
Continuously ONPower-up of Neuron 3120xx
chip-based node or Neuron
3150 chip-based node with
any PROM
VLT® 5000 / VLT® 6000
Use EEBLANK and follow
reinitialization procedure.
Continuously OFFPower-up of Neuron 3120xx
chip-based node or Neuron
3150 chip-based node with
any PROM
ON for one second at power-up
followed by approximately 2
seconds OFF, then stays ON
Short flash every 3 secondsAnytime
Flashing at 1 second intervalsAnytimeIndicates node is unconfigured
Power-up/ResetMay be caused by Neuron chip
Indicates bad node hardware.
firmware when mismatch occurs
in application checksum.
Indicates watchdog timer resets
occurring.
Possible corrupt EEPROM.
For Neuron 3150 chip-based
node, use EEBLANK and follow
reinitialization procedure.
but has an application. Proceed
with loading node.
Brief flash at power-up. OFF
duration approximately 10
seconds after which stays ON
Brief flash at power-up. OFF
duration approximately 1 to 15
seconds, depending on
application size and system
clock. LED then begins flashing
at 1 second intervals.
Brief flash at power-up followed
by OFF
MG.60.E4.02 - VLT is a registered Danfoss trademark
Using EEBLANK or Neuron
3150 chip-based node
First power-up with new
PROM on Neuron 3150 chipbased custom node.
Unconfigured firmware state
exported.
Indicate completion of blanking
process.
Indicates unconfigured state.
Node is configuring and running
normally.
Service LED Pattern Descriptions
23
VLT® 5000 / VLT® 6000
VLT adjustable
frequency drive
and LonWorks
Network
Configuration
Network
Drive
Control
Input
The VLT LonWorks option card supports
LonMark network design to improve
interoperability. The Controller Object contains
the VLT Adjustable Frequency Drive profile.
The configuration parameters are network
The most common functions for controlling
the VLT Adjustable Frequency Drive from the
LonWorks network are made readily available.
Those functions and their descriptions are
presented in the table below. The control word
function accesses additional drive capabilities
for network control.
The choice of open loop or closed loop
operation of the drive is selected in parameter
100, Configuration.
Using nviRefPcnt, the drive's reference is
expressed as a percentage of the reference
range. The range is set using parameters 204,
Min. Reference and 205, Max. Reference. In
open loop operation, reference represents the
drive's desired output speed. In this case, set
Min. Reference to 0 Hz and Max. Reference
equal to Max. Frequency in parameter 202.
In closed loop operation, reference represents
the desired setpoint. It is recommended that
parameters 204 and 205 be set equal to
parameters 201, Min. Frequency and 202,Max. Frequency.
variable inputs to the VLT. Configuration of
parameters needs setting only one time,
usually at installation.
analog input terminals should not be used for
reference signals. The default setting (0%)
should be maintained for preset references in
parameters 211 (215) through 214 (218). Also,
in closed loop operation, the default setting
(0.0) should be maintained for drive setpoints
in parameters 418 (215) and 419 (218).
Start/Stop and Reset fault
SNVT_lev_disc. ST_OFF and ST_NUL are
interpreted as low or “0.” ST_LOW, ST_MED,
ST_HIGH, and ST_ON are interpreted as high
or “1.”
NOTE
T o optimize network performance
and for proper drive operation,
use only one of following input
reference commands.
Reference 1
Network variable nviRefPcnt is a signed value.
It represents the desired percentage of the
VLT drive's reference range.
24
All references provided to the drive are added
to the total reference value. If reference is to
be controlled by the LonWorks bus only,
ensure that all other reference inputs are zero.
This means that digital input terminals and
* Reset on a transition from 0 to 1. A “0” must be sent after reset to enable the next reset.
Network Variable Inputs to VLT
VLT 5000 parameters are shown in parenthesis, where applicable.
MG.60.E4.02 - VLT is a registered Danfoss trademark
VLT® 5000 / VLT® 6000
p
p
p
p
p
q
q
p
p
g
g
g
g
)
)
)
p
)
)
)
)
g
g
g
g
g
g
e
e
Network
Drive
Control
Input
(continued)
Reference 2
Network variable nviRefRads is a signed value.
A negative value is interpreted as zero. It
represents the desired output frequency of the
drive in radians/second in open loop. It is rarely
used in closed loop.
Reference 3
Network variable nviRefHz is an unsigned
value. It represents the output frequency of
the drive in Hz in open loop. It is rarely used in
closed loop mode.
Control Word
The input network variable nviControlWord is
a 16-bit word that provides additional
operational control of the drive, as listed in
the table below. The settings shown represent
the Coast Stop command
Bit
BitSetting
Setting00001
BitBit
SettingSetting
00
000000Preset Ref. LSB
0000
01
010000Preset Ref. MSB
0101
02
021111DC Brake
0202
03
030000Coast Stop
0303
04
041111Quick Stop
0404
05
051111Freeze Freq.
0505
06
060000Ramp Stop
0606
07
070000no Reset
0707
08
080000no Jog
0808
09
090000no function
0909
10
101111see Parm. 805
1010
11
110000Relay 1 OFF
1111
12
120000Relay 2 OFF
1212
13
130000Setup LSB
1313
14
140000Setup MSB
1414
15
150000no Reversing
1515
Preset Ref. LSB
Preset Ref. LSBPreset Ref. LSB
Preset Ref. MSB
Preset Ref. MSBPreset Ref. MSB
DC Brakeno DC Brake
DC BrakeDC Brake
Coast Stopno Coast Stop
Coast StopCoast Stop
Quick Stopno Quick Stop
Quick StopQuick Stop
Freeze Freq.no Freeze Freq.
Freeze Freq.Freeze Freq.
Ramp StopStart
Ramp StopRamp Stop
no ResetReset
no Resetno Reset
no JogJog
no Jogno Jog
no function02
no functionno function
see Parm. 80503
see Parm. 805see Parm. 805
Relay 1 OFFRelay 1 ON
Relay 1 OFFRelay 1 OFF
Relay 2 OFFRelay 2 ON
Relay 2 OFFRelay 2 OFF
no ReversingReversing
no Reversingno Reversing
Setup LSB06
Setup LSBSetup LSB
Setup MSB07
Setup MSBSetup MSB
1
11
no DC Brake
no DC Brakeno DC Brake
no Coast Stop
no Coast Stopno Coast Stop
no Quick Stop
no Quick Stopno Quick Stop
no Freeze Freq.nviStartStop
no Freeze Freq.no Freeze Freq.
StartBit
StartStart
Reset00
ResetReset
Jog01
JogJog
Relay 1 ON04
Relay 1 ONRelay 1 ON
Relay 2 ON05
Relay 2 ONRelay 2 ON
Reversing08
ReversingReversing
Control Word Bit Descriptions
for Coast Stop
The VLT 5000 allows the choice between two
control word profiles, selected in parameter 512,
Telegram Profile. The table below defines the
Profidrive control word used for transmitting
commands to the drive using the Profibus
protocol.
Bit
Bit1111
BitBit
00
00ON 1
0000
01
01ON 2
0101
02
02ON 3
0202
03
03Enable
0303
04
04Ramp
0404
05
05Ramp Enable
0505
06
06Start
0606
07
07Reset
0707
08
08ON
0808
09
09ON
0909
10
10Valid
1010
11
11Slow down
1111
12
12Catch up
1212
13
13
1313
14
14
1414
15
15Reversing
1515
Valu
Value
ValueValu
32768
32768
3276832768
16384
16384
1638416384
8192
8192
81928192
4096
4096
40964096
2048
2048
20482048
1024
1024
10241024
512
512
512512
256
256
256256
128
128
128128
64
64
6464
32
32
3232
16
16
1616
8888
4444
2222
1111
0000
OFF 1
OFF 1
OFF 1OFF 1
OFF 2
OFF 2
OFF 2OFF 2
OFF 3
OFF 3
OFF 3OFF 3
Motor coastin
Motor coastin
Motor coastin
Motor coastin
Quick stop
Quick stop
Quick sto
Quick sto
Freeze out freq.
Freeze out fre
Freeze out fre
sto
Ramp sto
Ram
Ramp sto
Ramp sto
No function
No function
No functionNo function
Jo
1 OFF
1 OFF
Jo
Jo
1 OFFJog 1 OFF
2 OFF
2 OFF
Jo
Jo
Jo
2 OFFJog 2 OFF
Data not valid
Data not valid
Data not validData not valid
No function
No function
No functionNo function
No function
No function
No functionNo function
No function
No function
No functionNo function
Setup 1 (LSB)
Setup 1 (LSB
Setup 1 (LSB
Setup 1 (LSB
Setup 2 (MSB
Setu
Setup 2 (MSB
Setup 2 (MSB
.
.Freeze out freq.
2 (MSB
ON 1
ON 1ON 1
ON 2
ON 2ON 2
ON 3
ON 3ON 3
Enable
EnableEnable
Ramp
RampRamp
Ramp Enable
Ramp EnableRamp Enable
Start
StartStart
Reset
ResetReset
ON
ONON
ON
ONON
Valid
ValidValid
Slow down
Slow downSlow down
Catch up
Catch upCatch up
Reversing
ReversingReversing
Profidrive Control W ord Bit
Descriptions
The equivalent control word bit settings to
start and stop the drive (nviStartStop) and to
reset after a fault (nviResetFault) are described
in the table below.
nviStartStopnviResetFault
nviStartStopnviStartStop
Bit00001
BitBit
0000000
0000
0100000
0101
0211111
0202
0311111
0303
0411111
0404
0511111
0505
0600001
0606
0700000
0707
0800000
0808
09
0900000
0909
10
1011111
1010
11
1100000
1111
12
1200000
1212
13
1300000
1313
14
1400000
1414
15
1500000
1515
nviResetFault
nviResetFaultnviResetFault
10
01
11
00
00
00
00
00
11
11
11
11
11
11
11
11
10
11
01
00
00
00
00
00
11
11
00
00
00
00
00
00
00
00
00
00
1Description
Description
11
DescriptionDescription
0Preset Ref LSB
Preset Ref LSB
00
Preset Ref LSBPreset Ref LSB
0Preset Ref MSB
Preset Ref MSB
00
Preset Ref MSBPreset Ref MSB
1No DC Brake
No DC Brake
11
No DC BrakeNo DC Brake
1No Coast Stop
No Coast Stop
11
No Coast StopNo Coast Stop
1No Quick Stop
No Quick Stop
11
No Quick StopNo Quick Stop
1No Freeze Freq.
No Freeze Freq.
11
No Freeze Freq.No Freeze Freq.
0Start
Start
00
StartStart
1Reset
Reset
11
ResetReset
0Jog
Jog
00
JogJog
0No function
No function
00
No functionNo function
1Bit 10
Bit 10
11
Bit 10Bit 10
0Relay 1 On
Relay 1 On
00
Relay 1 OnRelay 1 On
0Relay 2 On
Relay 2 On
00
Relay 2 OnRelay 2 On
0Setup LSB
Setup LSB
00
Setup LSBSetup LSB
0Setup MSB
Setup MSB
00
No value is written to the control word
No value is written to the control word
No value is written to the control word
No value is written to the control word
Setup MSBSetup MSB
0Reversing
Reversing
00
ReversingReversing
Start/Stop and Fault Reset Control W ord
Bit Descriptions
NOTE
Drive always stops and ignores
serial bus commands to run when
OFF/STOP or STOP/RESET
function is activated from drive
keypad.
VLT 5000 parameters are shown in parenthesis, where applicable.
MG.60.E4.02 - VLT is a registered Danfoss trademark
25
Precedence of the stop commands is:
1. Coast stop
2. Quick stop
3. DC brake stop
4. Ramp stop
Coast stop
The drive output stops immediately and
the motor coasts to a stop.
• Drive display show UN.READY (unit
ready) when coast stop is active.
The drive output frequency ramps down
to 0 Hz according to time set in parameter
207 (212), Ramp Down Time.
• Drive display shows STOP.
• Drive cannot run in AUTO mode but
can run in HAND mode.
VLT® 5000 / VLT® 6000
Ramp stop
The drive output frequency ramps down to
0 Hz according to time set in parameter
207, Ramp Down Time.
• Factory setting is 60 sec for fan
applications and 10 sec for most
pump applications.
• Drive display shows STAND BY.
• Drive can run in HAND mode or
AUTO through a digital input
command.
• Parameter 505, Start, determines
interaction with input 18.
DC brake stop
The drive brakes the motor to a stop using
DC injection braking.
• Parameters 114 (125) and 115 (126)
determine amount and time of DC
current applied for braking.
• Drive display shows DC STOP.
• Drive cannot run in AUTO mode but
can run in HAND mode.
• Parameter 504, DC Brake,
determines interaction with input
27.
26
MG.60.E4.02 - VLT is a registered Danfoss trademark
VLT® 5000 / VLT® 6000
Drive
Feedback to
Network
The VLT LonWorks option provides 16 output
variables to the network containing important
drive and motor feedback data. Feedback data
is sent when there is a change in value. The
VLT LonWorks option will only transmit bound
network variables. Since some data changes
continuously, the transmission rate of those
variables is limited. Min send time specifies
the minimum time between transmissions of
The Drive Outputs (1, 2, or 3) will have a
maximum time between transmission set by the
Max send time. This function acts as a transmit
heartbeat and allows a controller node to
determine the health of the controller/VLT
connection. The Max send time function is
disabled when the configuration network
variable nciMaxsendT is not configured or is set
to “0.”
NvoDrvStatus, nvoStatusWord, nvoDigitalInput, nvoAlarmWord, nvoWarning1 and
nvoWarning2 are all 16 bit Boolean values
using the SNVT_state variable type. Individual
bits represent specific drive status states. The
tables provided in Drive Status Bit Definitions
define each bit.
Drive output 1
Network variable nvoOutputPcnt provides an
analog indication of drive operation. In open
loop, this is the drive output frequency in
percentage within the reference range. To
avoid negative numbers, or numbers above
100%, set parameter 204, Min. Reference to
0 Hz, and parameter 205, Max. Reference
equal to parameter 202, Max. Frequency.
VLT 5000 parameters are shown in parenthesis, where applicable.
MG.60.E4.02 - VLT is a registered Danfoss trademark
Network Variable Outputs from VLT
In closed loop, this is the drive's feedback
signal within the reference range. For best
operation, set Min. Reference to equal
parameter 413 (414), Min. Feedback, and
Max. Reference to equal parameter 414 (415),
Max. Feedback.
Drive output 2 and Drive Output 3
Output 2 is useful in open loop to report the
drive's output frequency in rad/sec. Output 3
in open loop reports the drive's output in Hz.
Note that in closed loop nvoOutputHz will
report the actual Feedback and not the output
frequency. For best results, set Min. Reference
to 0 Hz and Max. Reference equal to Max.Frequency. These variable are rarely used in
closed loop.
no function
no function
no function
no function
no function
no function
no function
no function
no function
no function
no function
no function
no function
Sets the minimum period between
transmissions for all output network variables,
using the network variable nciMinSendT. This
function is used to keep the transmission of
variables that change continuously from
dominating the network communication.
Max receive time
This drive function is replaced by the value
set in parameter 803, Bus Time Out. The
LonWorks option will initiate bus time out
activities when the time set in parameter 803
expires without receiving an input network
variable directed to the drive. This acts like a
LonWorks receive heartbeat. The action taken
by the drive is determined by the setting
selected in parameter 804, Bus time outfunction. See the parameter description
section of this manual. The value of
nciMaxReceiveT has no effect on the
operation of the drive.
Max send time
This function sets the maximum time between
transmissions for the network variables Drive
Output 1, 2, and 3 using the configuration
network variable nciMaxSendT. It can be used
by the controller to monitor the health of the
VLT and controller connection. It acts like a
LonWorks send heartbeat.
The Max send time function is disabled when
nciMaxSendT is not configured or set to “0.”
30
MG.60.E4.02 - VLT is a registered Danfoss trademark
VLT® 5000 / VLT® 6000
VL T
Parameter
Access
A controller node can monitor or modify any
VLT parameter by supporting the Parameter
access command and the Parameter access
response functions. These functions allow a
controller complete access to the features of
the VLT and the ability to configure drives with
predefined settings, using the network
variables nviParamCmd and nvoParamResp.
The following definitions describe how the
fields of SNVT_preset are used by the VLT
LonWorks option:
Learn
This field contains the function code for the
VLT. The values for this field are:
LN_RECALL (0),
LN_LEARN_CURRENT (1),
LN_LEARN_VALUE (2), and
LN_REPORT_VALUE (3).
LN_RECALL (0) and
LN_REPORT_VALUE (3)
are interpreted as read commands.
LN_LEARN_CURRENT (1) and
LN_LEARN_VALUE (2)
are interpreted as write commands.
Any other value in this field will result in an
error message in the Parameter access
response.
Selector
This field contains the VLT parameter
number, written in decimal notation, that is
to be written or read. Requests for
undefined parameters will result in an error
message in the Parameter access esponse.
The controlling device should compare the
parameter number of the response
message to the requested parameter
number to determine that the information
received is the requested information and
not a response to another controller or from
another VLT.
Value
This array contains the parameter
information to and from the VLT. All VLT
parameters use 16 bit signed or unsigned
values. The most significant 2 hex bytes of
data will be stored in value [0] and the least
significant 2 hex bytes of data will be stored
in value [3]. In the event of an error
message, the VLT will send 0xff in value [0]
and an error code in value [3]. The error
codes are defined in the section ParameterAccess Error Codes in this manual.
NOTE
Consult
Conversion Inde x
in
the VLT Instruction Manual
parameter table for correct
conversion factor f or reading and
writing to and from drive.
Day, Hour, Minute, Second, Millisecond
The time fields are not supported by the
VLT LonWorks option. The VLT will respond
to parameter access requests as soon as
they are received. Any values in the time
fields of the Parameter access command
will be ignored. All time fields will be set to
“0” in the Parameter access response.
FunctionSNVT typeVariable Name
Parameter access commandSNVT_presetnviParamCmd
FunctionSNVT typeVariable Name
Parameter access responseSNVT_presetnvoParamResp
MG.60.E4.02 - VLT is a registered Danfoss trademark
Network Variable Input to VLT
Network Variable Output from VLT
31
VLT® 5000 / VLT® 6000
CAUTION
!
Parameter
Access
Error Codes
Parameter
Access
Command
and
Response
Examples
In the event of an error message in response
to a Parameter access command (see VLT
Parameter Access), the VLT sends 0xff in value
Parameter Access Error Codes
Exception CodeInterpretation
1Illegal function for the addressed node
2Illegal data address (i.e., illegal parameter number)
3Illegal data value
6Busy
The examples below demonstrate use of the
parameter access command and parameter
access response functions of the controller
node. In the examples, the controller node has
a parameter access command SNVT_preset
called nvoParamCmd and a parameteraccess response SNVT_preset called
nviParamResp. In writing to the drive correctly,
the access response simply repeats the
entered data. In the event of an error, an error
code is displayed in value [3]. See ParameterAccess Error Codes above.
bit [0] and an error code in value [3]. Error
code definitions are presented in the table
below.
Parameter 971 must be set to
STORE ACTIVE SETUP for
entering data values through
LonWorks
command
changes in drive. See parameter
971 in
section of this manual.
Consult conversion index in the
VL T Instruction Manual
table for correct conversion
factor for reading and writing to
and from drive.
parameter access
in order to save
Parameter Descriptions
NOTE
parameter
Example 1:
32
The controller node writes 30 seconds to
parameter 206 (205), Ramp time up of the
VLT. Conversion index is 0, so the conversion
factor is 1.0 (VLT 5000 conversion factor -2)).
The controller node access command sends
the following parameter write request to the
VLT.
MG.60.E4.02 - VLT is a registered Danfoss trademark
A controller node reads the value of parameter
407 (411), Switching Frequency, in the VLT.
The value stored in parameter 407 is 10 kHz.
The conversion index is 2, so the conversion
factor is 100.
The controller node sends the following
parameter read request to the VLT.
A controller node error is written to VLT
parameter 201, Output Frequency Low Limit,
with 80.0 Hz when the high limit is 60 Hz. The
conversion index is -1, with conversion factor 0.1.
The controller node sends the following
parameter write request to the VLT.
The VLT LonWorks option supports two
standard objects and three SNVTs, per the
LonMark standard object philosophy. The
standard objects are the Node Object
(containing the Object request, Object status,
and Object alarm) and the Controller object,
(containing the network variables described
in the preceding sections). The Object request
is a LonMark device used to obtain status and
alarm information from a node.
The controller node receives the following
parameter access response from the VLT.
The nviRequest.object_id should be set
to “1” (controller node). The network
uses nviRequest, nvoStatus and
nvoAlarm variables for these functions.
2. The VLT sends an Object status
containing a bit map of supported
status fields in response to all other
Object requests, including undefined
requests.
It is not necessary for a controller to support
the Node Object network variables. The
Object request, Object status and Object
alarm provide status and alarm information
for controllers that only support this type of
functionality. The status and alarm functions
described in the preceding sections contain
more drive specific information than Objectstatus and Object alarm.
1. The VLT sends an Object status
containing drive status information
and an Object alarm containing fault
informationin response to the
following Object requests:
3. The VLT Object status supports the
following status fields: invalid_id,
invalid_request,open_circuit,
out_of_service, electrical_fault,
comm_failure, manual_control, and
in_alarm. All other fields are always
set to “0.”
4. The VLT sends an Object alarm
following any set or reset of a drive
fault condition.
5. The Object alarm supports the
AL_ALM_CONDITION and
AL_NO_CONDITION alarm types.
34
Network Variables for Node Object Support
MG.60.E4.02 - VLT is a registered Danfoss trademark
VLT® 5000 / VLT® 6000
p
g
g
p
A
A
p
A
q
VLT 6000
Alarm
Descriptions
Alarm numbers and descriptions that
correspond to nvoAlarmWord bit numbers are
See the VLT 5000 Instruction Manual
for more details.
Alarm Description
fault
VLT 5000 parameters are shown in parenthesis, where applicable.
★ Factory setting
MG.60.E4.02 - VLT is a registered Danfoss trademark
35
VLT® 5000 / VLT® 6000
Parameter
List
Parameter
Descriptions
ConversionData
PNUParameter DescriptionDefault V alueRangeIndexT ype
803Bus time out1 sec1 - 99 sec.03
804Bus time out functionno function03
805Bit 10 functionBit 10 = > CTW ACT06
927Parameter editEnable06
928Process controlEnable06
970Edit setupActive Setup05
971Store data valuesno action05
In addition to the parameters listed above, the
drive's control terminals issue digital inputs
that control functions similar to those provided
by nviStartStop, nviResetFault, and
nviControlWord. Parameters (502) 503
through 508 determine how the drive
responds to commands for (quick stop,
VLT 5000 only), coasting stop, DC brake,
start, reverse, setup select and preset
reference select. See Network Drive Control
Input in this manual and the VLT Instruction
Manual for more information.
803803
803
803803
Bus time outBus time out
Bus time out
Bus time outBus time out
Selection:
1 - 99 sec ★ 1 sec
Function:
Sets the duration for the bus time out function.
If the set time passes without the drive
receiving a LonWorks message addressed to
it, the drive will take the action specified in
parameter 804, Bus Time Out Function.
NOTE
After time out counter is reset it
must be triggered by valid contr ol
word before new time out can be
activated.
36
VLT 5000 parameters are shown in parenthesis, where applicable.
★ Factory setting
MG.60.E4.02 - VLT is a registered Danfoss trademark
804804
804
804804
TT
ime out functionime out function
T
ime out function
TT
ime out functionime out function
Selection:
★ Off
(NO FUNCTION)[0]
Freeze output frequency
(FREEZE OUTPUT FREQ.)[1]
Stop with auto restart
(STOP)[2]
Output frequency = JOG freq.
(JOGGING)[3]
Output frequency = Max. freq.
(MAX SPEED)[4]
Stop with trip
(STOP AND TRIP)[5]
Control without DeviceNet
(NO COM OPT CONTROL)[6]
Select set-up 4
(SELECT SET UP 4)[7]
Function:
The time out timer is triggered at the first
reception of a valid control word, i.e.,
bit 10 = ok.
The time out function can be activated in two
different ways:
1. The drive does not receive a
LonWorks command addressed to it
within the specified time.
2. Parameter 805 is set to “bit 10 = 0
time out” and a control word with “bit
10 = 0” is sent to the drive.
The VLT remains in the time out state until
one of the following four conditions is true:
1. A valid control word (Bit 10 = ok) is
received and the drive is reset
through the bus, the digital input
terminals or the local control panel.
(Reset is only necessary when the
time out function Stop w/trip is
selected.) Control via LonWorks is
resumed using the received control
word.
2. Local control via the local control
panel is enabled.
3. Parameter 928, Access to processcontrol, is set to Disabled.
Normal control via the digital input
terminals and the RS-485 interface is
now enabled.
VLT® 5000 / VLT® 6000
4. Parameter 804, Bus time out function,
is set to Off.
Control via LonWorks is resumed and
the most recent control word is used.
Description of Selections:
• Freeze output frequency. Maintain
present output frequency until
communication is resumed.
• Stop with auto restart. Stop and
automatically restart when
communication is resumed.
• Output frequency = JOG freq. Drive
will produce JOG frequency set in
parameter 209 (213), Jog frequency,
until communication is resumed.
• Output frequency = Max. freq. Drive
will produce maximum output
frequency (set in parameter 202,
Output frequency) until
communication is resumed.
• Stop with trip. Drive stops and
requires a reset command before it
will restart.
• Control without LonWorks. Control via
LonWorks is disabled. Control is
possible via digital input terminals
and/or standard RS-485 interface
until LonWorks communication is
resumed.
• Select setup 4. Setup 4 is selected in
parameter 002 (004), Active setup,
and settings of setup 4 are used.
Parameter 002 (004) is not reset to
the original value when
communication is resumed.
VLT 5000 parameters are shown in parenthesis, where applicable.
★ Factory setting
MG.60.E4.02 - VLT is a registered Danfoss trademark
37
805805
CAUTION
!
805
805805
ContrContr
ol Wol W
oror
ol W
ol Wol W
or
oror
dd
d
dd
Contr
ContrContr
Bit 10 FunctionBit 10 Function
Bit 10 Function
Bit 10 FunctionBit 10 Function
Selection:
No function
(NO FUNCTION)[0]
★ Bit 10 = 1: control word active
(BIT 10 = 1 >CTW ACTIVE)[1]
Bit 10 = 0: control word active
(BIT 10 = 0 >CTW ACTIVE)[2]
Bit 10 = 0: bus time out
(BIT 10 = 0 >TIME OUT)[3]
Function:
According to the drive's standard
communications profile, control word and
speed reference will be ignored if bit 10 of the
control word is 0. Parameter 805 lets the user
change the function of bit 10. This is some
times necessary, as some masters set all bits
to 0 in various fault situations. In these cases,
it makes sense to change the function of bit
10 so that the VLT is commanded to stop
(coast) when all bits are 0.
VLT® 5000 / VLT® 6000
Description of Selections:
• No function. Bit 10 is ignored, i.e.,
control word and speed reference are
always valid.
• Bit 10 = 1 >CTW active. The control
word and speed reference are
ignored if bit 10 = 0.
With
Bit 10
selected, nviStartStop and
nviResetFault commands will not
function.
• Bit 10 = 0 >CTW active. The control
word and speed reference are
ignored if bit 10 = 1. If all bits of the
control word are 0, the VLT reaction
will be coasting.
• Bit 10 = 0 >time out. The time out
function selected in parameter 804 is
activated when bit 10 is 0.
This parameter determines if LonWorks can
be used to access and edit drive parameters.
This parameter determines LonWorks control
of the drive. When Enable is selected, drive
parameters 503 through 508 determine the
interaction between various LonWorks and
digital drive input commands. See the
VLT Instruction Manual for details.
This parameter selects the setup being edited,
through either the drive control panel or
LonWorks. The drive may operate in one
setup while editing another. Active setup
selects the parameter being edited as the
setup controling drive operation.
When this parameter is set to Store activesetup, LonWorks downloaded parameters are
written to EEPROM and stored. Store editsetup stores the setup selected in parameter
970. Store all setups stores all setups in
parameter 970. When finished (appx. 15 sec.),
it automatically returns to No action. Any
parameters values written via the serial bus
with No action selected are lost when power
is removed from the drive. The function is only
activated with the VLT in stop mode.
38
MG.60.E4.02 - VLT is a registered Danfoss trademark
VLT® 5000 / VLT® 6000
Decommissioning
VLT Drive from
LonWorks
Network
CAUTION
!
Specific procedures must be
followed when removing VLT
drive from LonWorks network.
Failure to adhere to steps
described can result in drive
entering inoperable state.
The VLT drive cabling connector must be
disconnected prior to removing the drive from
the LonWorks network configuration to
prevent corruption of the drive EEPROM
processor. Decommission the drive from the
network in accordance with the following
procedure.
1. Use LonWorks software configuration
tool to remove bindings from drive
function blocks.
2. Use LonWorks software configuration
tool to remove drive function blocks
from all drive variables.
3. Disconnect LonWorks cabling from
drive input terminal.
4. Use LonWorks software configuration
tool to remove drive device from
network.
Improper decommissioning of the drive may
result in locking up the drive with the display
reading as follows.
Failed
OPTION ERROR:
1: NO OPT. RESPONSE
Try to reinitialize drive by removing power until
display does blank. Reapply power. If drive
functions are not restored, order the Danfoss
EEBLANK Kit (P/N 175L4167) to restore the
EEPROM functionality.
MG.60.E4.02 - VLT is a registered Danfoss trademark
39
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